This workflow provides a way to select specific days and automatically download and parse CDI (Certificados de Depósito Interbancário) data from B3/CETIP (Brazil).
https://www.b3.com.br/pt_br/market-data-e-indices/indices/indices-de-segmentos-e-setoriais/serie-his...
This data is public available and it is really usefull to build finantial reports.